Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
In the original version of this Article, the second and third sentences of the first paragraph of the "Gate voltage and antidot period dependencies" section of the Results originally incorrectly read "The characteristic evolution of the sheet resistance ρ=ρ (B=0) with V shown for three antidot samples and an unpatterned reference sample in Fig. 3a. The maxima of ρ, located between V~0.5 and 1 V, reflect the charge neutrality point (CNP), corresponding to an E position located slightly in the valence band (see band structure in Fig. 3b)." In the corrected version, "[Formula: see text]" is replaced by "[Formula: see text]", and "The maxima of [Formula: see text]" is replaced by "The maxima of [Formula: see text]".
Download full-text PDF |
Source |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5799213 | PMC |
http://dx.doi.org/10.1038/s41467-018-02964-z | DOI Listing |
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